Purple through to yellow camalot goes in a lot. You often only need one bigger cam on the easier cracks (and it's usually required at the top), having extra middle sizes allows you to save the big ones till you need them.

Despite my general feelings of disgust towards hexes, they would work fine in lots of the cracks (if you're too pov to own enough cams). Totally useless on the face routes though, where it's all about cams in horizontals and pockets.